$.fn.countTo = function(a) {
  a = a || {};
  return $(this).each(function() {
      var c = $.extend({},
      $.fn.countTo.defaults, {
          from: $(this).data("from"),
          to: $(this).data("to"),
          speed: $(this).data("speed"),
          refreshInterval: $(this).data("refresh-interval"),
          decimals: $(this).data("decimals")
      },
      a);
      var h = Math.ceil(c.speed / c.refreshInterval),
      i = (c.to - c.from) / h;
      var j = this,
      f = $(this),
      e = 0,
      g = c.from,
      d = f.data("countTo") || {};
      f.data("countTo", d);
      if (d.interval) {
          clearInterval(d.interval)
      }
      d.interval = setInterval(k, c.refreshInterval);
      b(g);
      function k() {
          g += i;
          e++;
          b(g);
          if (typeof(c.onUpdate) == "function") {
              c.onUpdate.call(j, g)
          }
          if (e >= h) {
              f.removeData("countTo");
              clearInterval(d.interval);
              g = c.to;
              if (typeof(c.onComplete) == "function") {
                  c.onComplete.call(j, g)
              }
          }
      }
      function b(m) {
          var l = c.formatter.call(j, m, c);
          f.html(l)
      }
  })
};
$.fn.countTo.defaults = {
  from: 0,
  to: 0,
  speed: 1000,
  refreshInterval: 100,
  decimals: 0,
  formatter: formatter,
  onUpdate: null,
  onComplete: null
};
function formatter(b, a) {
  return b.toFixed(0)
}
$("#count-number").data("countToOptions", {
  formatter: function(b, a) {
      return b.toFixed(0).replace(/\B(?=(?:\d{3})+(?!\d))/g, ",")
  }
});
$(document).scroll(function() {
var scroH = $(document).scrollTop();  //滚动高度
console.log(scroH, 'scroHv')
var viewH = $(window).height();  //可见高度 
var contentH = $(document).height();  //内容高度
if(scroH >5487 && scroH<=5587 ){  //距离顶部大于100px时
     $(".timers").each(count);
     function count(a) {
         var b = $(this);
         a = $.extend({},
         a || {},
         b.data("countToOptions") || {});
         b.countTo(a)
     };
}
})
